Which of the following defines the term data as it is used in this sentence from paragraph 5 of
"Scientific Investigation"?

Scientists go into scientific data collection with clear, expected results in mind, but the researcher
must be prepared for the actual results and remain open-minded to possibilities that evolve during
the data analysis phase of the process.

A individual facts or statistics

B any proposition assumed or given

C any level surface, line, or point used as a reference

D a basis for horizontal control surveys in engineering